/* 样式重置 */
/* 理论上都是一些 标签选择器，对系统标签进行重置，统一样式 */
*,::after,::before{
    box-sizing: border-box;
}

i{
    display: inline-block;
}

div{
    display: flex;
}

img,video{
    display: block;
    object-fit: cover;
}

html{
    font-size: 16px;
    color: #000;
}

table{
    border-collapse: collapse;
}

body,h1,h2,h3,h4,h5,h6,p,ul{
    margin: 0;
    padding: 0;
}

li{
    list-style: none;
}

a{
    text-decoration: none;
}

button{
    border: none;
    background-color: transparent;
    font-size: 1rem;
}

button:active{
    opacity: 0.8;
}
input{
    outline: none;
}